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Finding the Fourth Proportional to 80,565.90, 120,733.65 and 59,340.30

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Solution

The fourth proportional to 80,565.90, 120,733.65 and 59,340.30 is: 88,925.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,565.90 : 120,733.65 = 59,340.30 : x
  2. Step 2: Convert to fraction form
    80,565.90/120,733.65 = 59,340.30/x
  3. Step 3: Cross multiply
    80,565.90x = 120,733.65 × 59,340.30
  4. Step 4: Simplify right side
    80,565.90x = 7,164,371,011.10
  5. Step 5: Solve for x
    x = 7,164,371,011.10/80,565.90
  6. Step 6: Final answer
    x = 88,925.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.